Summer-sown peanuts have problems of short growth period and insufficient accumulated temperature. In management measures, we must adhere to the principle of “early and promotingâ€, especially in this year, the rainfall in the wheat field is early and large, and most of the areas and farmers In the case of early and early wheat interplanting, combined with the effects of rainy rain and low temperature fogging, some of the fields have been seriously deficient in seedlings. Such peanuts need to be promoted early in the morning to obtain a better harvest. Characteristics and requirements of flowering needle growth: In the flowering period, it refers to flowering to young fruit swelling. In this period, roots, stems, leaves and branches grow faster, and a large number of flowers are laid down. The demand for water and nutrients is urgent. , accounting for about 30% of the total growth period. Peanut has no negative inflorescence, and the flowering period is longer. The average daily temperature suitable for flowering is 23°C~28°C. 80~200 flowers per plant, low temperature, low light, drought or more soil moisture will affect the normal flowering needle. Often 30 to 60% of the flower is affected by adverse factors and is not affected by the fine shape, or the fruit needle is formed by fertilization, but the temperature is not suitable, the fruit is not able to expand and mature normally, only 15~ 25% of the flowers are inflated to form the ideal pod and yield. Peanuts usually take 60-80 days from flowering to maturity, and the fertilization process is completed 10 to 18 hours after flowering, and fruit needles are formed in 4-6 hours. 20 to 30 days after fruit needles are inserted into the pods, and the dry weight increases from 50 to 60 days. Stop, the seed coat becomes thinner, the peel becomes hard, and the shape is already visible. From the point of view of the results, most of the first and second pairs of branches depend on the main stem and the nodes, accounting for about 60 to 70. Therefore, during this period, management is strengthened to meet the needs of growth and development, so that it can bloom more and promote fruit needles. It is especially important to get into the soil and strive for more ideal pods. Main management measures Early topdressing, the use of nitrogen, phosphorus, potassium, calcium. The nutrients stored inside the peanut seeds are basically exhausted 7 to 10 days after emergence. At this time, the roots and nodules can not only supply the nutrients needed for growth and development in time, but also need to absorb certain nutrients for rhizobial reproduction, while the seedlings themselves The roots and leaves, the differentiation of flower buds, etc., all require nutrient supply, in order to meet the needs of peanut growth and development. For this reason, peanuts are the critical line for fertilizer before flowering. After the wheat harvest, you should hurry and kill the fat, the sooner the better. Nitrogen, phosphorus, potassium, calcium and trace elements must be used together when fertilizing. Generally, 7-8 kg of urea per acre, 30-50 kg of phosphate fertilizer, 8-12 kg of potassium fertilizer, 50-60 kg of calcium fertilizer, other trace elements Instructions for implementation. 2. Cultivate the soil. Cultivating can not only remove weeds, break up the knots, loosen the soil, increase the permeability, prevent drought and protect the soil, etc., and the soil water, fertilizer, gas and heat conditions are comprehensively improved, which is beneficial to soil microbial activities and improve fertilizer utilization. Timely soiling can shorten the distance between the fruit needle and the ground, which is conducive to the lowering of the fruit needle, increasing the rate of fruit needle insertion and increasing the yield in the later stage. It is not too early or too late to cultivate soil. It is usually carried out about 20 days after flowering or when it is closed. You can use the hoe to plung the ditch in a wide row and pour the soil around the plant. 3. Watering at the right time. Although peanuts are drought-tolerant crops, they are during flowering and pod formation. Stems and leaves grow fast. The formation of many needles and the continuous formation of pods, combined with high temperature and large evaporation, is the maximum period of water demand in peanuts. The suitable soil moisture content is 60-70% of the field water holding capacity. When the soil moisture falls to the soil When the water volume is 50%, the flowering amount is obviously decreased. When the soil moisture is seriously insufficient, the flowering is gradually stopped. The fruit needles that have been in the soil cannot be expanded in the dry soil, and the young fruit is slow to develop. Therefore, when the soil moisture content is insufficient, it is timely. Watering. 4. Timely control of pests and diseases. Common diseases of peanuts include leaf spot, bacterial wilt, stem rot, root rot, rust, etc. The main pests are aphids, red spiders, crickets, crickets, Spodoptera litura, Spodoptera, and cotton bollworms. In the recent 1~2 years, there have been cotton bollworms in the past, and the degree of harm is large. If it is not timely prevented, it will lead to the harvest, and the ground can be used for prevention and control, and the effect is better. For cockroaches and cockroaches, when combined with soil, use 0.25 mg of methamidophos or phoxim and 25 kg of soil to sprinkle on the base of peanuts. Other pests and diseases can be controlled by conventional insecticides. In addition, in the case of excessive moisture content in rainy soil, the occurrence of iron deficiency yellow leaf disease can be controlled by using ferrous sulfate 100-150 grams and water 15-20 kg.
Tape measure is a commonly used tool in daily life, and it is one of the necessary tools for the family. Luban ruler, Feng Shui ruler, and Wen Gong ruler are also Steel tape measures. Steel tape measure is a common tool for construction and decoration.
Steel tapes can be divided into self-rolling tapes, braking tapes, and rolling tapes. Other names of steel tape measure are: steel tape measure, steel box ruler.
Rubber Tape Measure,30M Metal Tape Measure,Rubber Measuring Tape,Best Steel Tape Measure
Yucheng tengxu Measuring Tool Co., Ltd , https://www.hardwaretoolstape.com